Mike,
We aren’t thrilled about the slipped date either, it’s just how the stars aligned and had to be dealt with. If it’s any consolation, the entire company “never wants to do this again” and we are going back to 3-month delivery cycles.
It was one of those perfect storms of many ideas all funneling down to a single choke point that all depended on each other and *all* had to get addressed in unison. Luckily it doesn’t look like this will happen again after 7.0.